Once you have selected the date you can easily increase the day or decrease the day by using the ‘+’ and ‘-’ keys. You can also change only the day of the month by entering the number of the day and hit TAB. The day will automatically be selected with the same month and year. For example, if you have selected 9/22/2010 and would like to change the date to 9/23/2010, simply type in 23 and hit TAB.